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256382-45-3

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256382-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256382-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,8 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 256382-45:
(8*2)+(7*5)+(6*6)+(5*3)+(4*8)+(3*2)+(2*4)+(1*5)=153
153 % 10 = 3
So 256382-45-3 is a valid CAS Registry Number.

256382-45-3Relevant articles and documents

Design and synthesis of a selective EP4-receptor agonist. Part 4: Practical synthesis and biological evaluation of a novel highly selective EP4-receptor agonist

Maruyama, Toru,Kuwabe, Shin-Itsu,Kawanaka, Yasufumi,Shiraishi, Tai,Shinagawa, Yoshiyuki,Sakata, Kiyoto,Seki, Akiteru,Kishida, Yoko,Yoshida, Hideyuki,Maruyama, Takayuki,Ohuchida, Shuichi,Nakai, Hisao,Hashimoto, Shinsuke,Kawamura, Masanori,Kondo, Kigen,Toda, Masaaki

, p. 2103 - 2110 (2007/10/03)

A practical method of synthesizing a highly selective EP4-receptor agonist 1 using Corey lactone 2 as a key intermediate was developed. Selective methanesulfonylation of the primary alcohol of the diol 8 under the newly devised conditions followed by the protection of the remaining secondary alcohol are key reactions in this new method. Further biological evaluation of 1a-b is also reported.

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